Proposals for a 10,000-capacity mega-mosque in West Ham have led to fears it could create a radical Islamic ghetto in London.
The east London mosque, situated near the Olympic Park, will hold four times as many worshippers as St Paul's Cathedral; have 40ft minarets, an Islamic library, sports facilities and eight flats for visiting clerics.
Architects have described it as a 'contemporary Islamic sacred space'.
The fears have arisen as the plans have been submitted by Tablighi Jamaat, a Muslim missionary faction that was once described as an 'ante-chamber of fundamentalism'.
They believe the Islamic group advocates 'separation and segregation' and that two of the July 7th London bombers, Shehzad Tanweer and Mohammad Sidique Khan, are thought to have prayed at a Tablighi mosque in the West Yorkshire town of Dewsbury.
Campaign director of MegaMosque-NoThanks, Alan Craig, said: 'Newham Council wants a mixed use of the site with homes, shops and business units.
'The mosque trustees say they want to build a mosque the size of Battersea Power Station. Either way, it will be the UK's first custom built Sharia-controlled zone.'
The scheme is said to have aroused years of fierce resistance since the group first presented their plans in 1999.
In 2001, it was initially agreed that worship would only be on a short term basis, however permission expired in 2006 but the group carried on using the site.
The council issued an enforcement notice in 2010, but last year it successfully appealed against it and now more than 5,000 people worship at the site on a weekly basis.
The plans had included commercial units and some 300 flats, but these were abandoned after the Muslim community declared they did not want their beneficence going to a commercial venture.
A Newham Council spokesman said: 'We can confirm we have received a planning application. As this is currently being processed it would be inappropriate to comment further at this stage.'
An email submitted to the British National Party by a concerned member of the public said: I physically weld up with tears reading it.
Both of my grandparents are 93 years old, my grandmother working in ammunitions factories during the war and my grandfather was on the beaches on D-day.
It sickens me when I have to comfort them when these people burn poppies in November. It is incredibly difficult to watch two people who scarified everything for king and country, losing many friends, crying at the television.
My grandmother last year said to me it makes you wonder why we bothered. No one who was prepared to sacrifice what they were prepared to sacrifice should be made to feel that way.
They are getting weaker as time goes on and I only hope they don't live long enough to have to witness this monstrosity being built. They claim to be "Muslim missionaries".
I think we all know what that means. London witnessed their mission during 7/7, Madrid and New York some years before that.
I fear the Britain my children and their children will grow up in I really do.
Increasingly I think the BNP is the only hope we have left but because of these people and those on the left have no hope of gaining office.